Doorbells · Head to head

aosu Video Doorbell R1 Ultra vs Aqara Doorbell Camera G400 (Wired)

Full Smart Doorbells comparison in 2026

Updated October 2026
Data from the official aosu and Aqara sites.
2026 verdict
Completeness at the door favors the Aqara Doorbell Camera G400 (Wired) in this matchup, and it is also the more affordable of the two.
Aqara Doorbell Camera G400 (Wired)
Winner
Aqara Doorbell Camera G400 (Wired)
$99.99
Buy on Amazon USA
It brings 2K head-to-toe video in a 3:4 frame, PoE or 8-24V wiring, Ethernet, Wi-Fi 6, HomeKit Secure Video, Google, Alexa, SmartThings and Home Assistant, plus 24/7 recording to a microSD card of up to 512 GB with RTSP and ONVIF for an NVR. The aosu Video Doorbell R1 Ultra holds the higher owner rating and the better camera on paper, with a 5MP sensor, colour night vision and a base station that keeps two months of clips for free, but it supports no HomeKit. Pick the Aqara Doorbell Camera G400 (Wired) for an Apple-friendly, PoE-ready porch, or the aosu Video Doorbell R1 Ultra for a wire-free install with free local recording.
Works with
Connectivity
  • Wi-Fi 2.4/5 GHz
vs
Works with
Connectivity
  • Wi-Fi 2.4/5 GHz
  • Ethernet
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Featureaosu Video Doorbell R1 UltraAqara Doorbell Camera G400 (Wired)Winner
Price$119.99$99.99Aqara Doorbell Camera G400 (Wired)
Rating4.44.2aosu Video Doorbell R1 Ultra
Connectivity2.4 GHz WiFi, 5 GHz WiFi2.4 GHz WiFi, 5 GHz WiFi, EthernetAqara Doorbell Camera G400 (Wired)
IntegrationsGoogle Home, AlexaGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home AssistantAqara Doorbell Camera G400 (Wired)
AlertsMotion, People, Packages, Familiar FacesMotion, People, Packages, Animals, Vehicles, Familiar FacesAqara Doorbell Camera G400 (Wired)
Warranty1 year1 yearTie
StorageInternal, CloudMicroSD Card Slot, CloudTie
Customizable Motion ZonesYESYESTie

What the differences mean

Ecosystem

The Aqara Doorbell Camera G400 (Wired) supports HomeKit Secure Video, Google Home, Alexa, SmartThings, Home Assistant, RTSP and ONVIF. The aosu Video Doorbell R1 Ultra is limited to Google Assistant and Alexa through the aosu app, with no HomeKit, Matter, SmartThings or RTSP.

Storage

Both record locally with no subscription. The Aqara Doorbell Camera G400 (Wired) accepts a microSD card of up to 512 GB and can back up to an SMB NAS, while the aosu Video Doorbell R1 Ultra uses the included 8 GB aosuBase Mini with 60-day loop recording.

Power and placement

The Aqara Doorbell Camera G400 (Wired) has no battery and takes PoE or 8-24V wiring, so it needs power at the door. The aosu Video Doorbell R1 Ultra runs on a rechargeable battery or wiring, which is what lets it install on a door with no power.

Camera

The aosu Video Doorbell R1 Ultra pairs a 5MP sensor behind a seven-piece glass lens with colour night vision. The Aqara Doorbell Camera G400 (Wired) is 2K with 940nm infrared black-and-white night vision, so the aosu is the better camera on paper.

View

Both are shaped to catch a parcel, the Aqara Doorbell Camera G400 (Wired) with a 3:4 frame and the aosu Video Doorbell R1 Ultra with a 4:3 frame, both around 165 to 166 degrees diagonal. The Aqara adds privacy masking and customizable zones; the aosu also offers customizable zones.

Which one to buy if

What owners say

Aqara Doorbell Camera G400 (Wired) owners value the HomeKit Secure Video experience and the head-to-toe framing, describe installs of about fifteen minutes on existing wiring and praise RTSP for an NVR; their complaints are the quiet bundled chime, subscription-gated package and face detection and a transformer that sometimes needs upgrading. aosu Video Doorbell R1 Ultra owners chose it for the free local storage and report years of trouble-free use alongside easy installs and a sharp 5MP picture, but they warn that battery life can fall short of the 90-day rating, that human detection occasionally misses and that support can be slow on a damaged unit.

Frequently Asked Questions

Which is better overall: aosu Video Doorbell R1 Ultra or Aqara Doorbell Camera G400 (Wired)?

The Aqara Doorbell Camera G400 (Wired), for any door that has power. It supports HomeKit Secure Video, PoE, Ethernet, Wi-Fi 6, RTSP and 24/7 local recording, and it costs less in the build this comparison used. The aosu Video Doorbell R1 Ultra is the pick when there is no wiring, and it brings the better camera.

What is the biggest difference between the aosu Video Doorbell R1 Ultra and the Aqara Doorbell Camera G400 (Wired)?

Power and ecosystem. The Aqara Doorbell Camera G400 (Wired) is wired-only with PoE or 8-24V and native HomeKit, Google, Alexa, SmartThings, Home Assistant, RTSP and ONVIF, while the aosu Video Doorbell R1 Ultra runs on battery or wiring and stays within the aosu app plus Alexa and Google.

Does the aosu Video Doorbell R1 Ultra need a subscription?

No. The included aosuBase Mini has 8 GB of storage with 60-day loop recording, and real-time alerts, two-way audio, human detection and playback all work without a plan. Cloud subscriptions only add advanced AI detections and longer retention.

Does the Aqara Doorbell Camera G400 (Wired) need a subscription?

No for the core features. Motion and person detection run on the device and 24/7 recording works from a microSD card of up to 512 GB with optional SMB NAS backup. A HomeGuardian plan is only needed for cloud storage and the cloud AI detections.

Does the aosu Video Doorbell R1 Ultra work with Apple HomeKit?

No. It supports Amazon Alexa and Google Assistant only, with no HomeKit, Matter, SmartThings or RTSP support. The Aqara Doorbell Camera G400 (Wired) is the one in this pair that carries HomeKit Secure Video.

Who should buy the aosu Video Doorbell R1 Ultra?

Buyers with no wiring at the door who want the better camera and free two-month local recording, in a home that runs on Alexa or Google and does not need HomeKit.

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